The United Nations says global human population reached 7.2 billion in mid-2013. The "medium-fertility" projection for the year 2050 has been revised upward to 9.6 billion.
Typhoon Soulik is hitting parts of Taiwan today. It'll continue to push northwest and affect parts of China's provinces of Fujian and Zhejiang on Saturday.
This week a European Earth-observing satellite confirmed that a large iceberg broke off of Pine Island Glacier, one of Antarctica's largest and fastest moving ice streams.
The Las Conchas fire emissions findings suggest that fire emissions could contribute a lot more to the observed climate warming than current estimates show.